ID   NDHJ_CITSI              Reviewed;         158 AA.
AC   Q09MH5;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   17-OCT-2006, sequence version 1.
DT   02-SEP-2026, entry version 66.
DE   RecName: Full=NAD(P)H-quinone oxidoreductase subunit J, chloroplastic {ECO:0000255|HAMAP-Rule:MF_01357};
DE            EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01357};
DE   AltName: Full=NAD(P)H dehydrogenase subunit J;
DE   AltName: Full=NADH-plastoquinone oxidoreductase subunit J {ECO:0000255|HAMAP-Rule:MF_01357};
GN   Name=ndhJ {ECO:0000255|HAMAP-Rule:MF_01357};
OS   Citrus sinensis (Sweet orange) (Citrus aurantium var. sinensis).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Sapindales; Rutaceae; Aurantioideae; Citrus.
OX   NCBI_TaxID=2711;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Ridge Pineapple;
RX   PubMed=17010212; DOI=10.1186/1471-2229-6-21;
RA   Bausher M.G., Singh N.D., Lee S.-B., Jansen R.K., Daniell H.;
RT   "The complete chloroplast genome sequence of Citrus sinensis (L.) Osbeck
RT   var 'Ridge Pineapple': organization and phylogenetic relationships to other
RT   angiosperms.";
RL   BMC Plant Biol. 6:21-21(2006).
CC   -!- FUNCTION: NDH shuttles electrons from NAD(P)H:plastoquinone, via FMN
CC       and iron-sulfur (Fe-S) centers, to quinones in the photosynthetic chain
CC       and possibly in a chloroplast respiratory chain. The immediate electron
CC       acceptor for the enzyme in this species is believed to be
CC       plastoquinone. Couples the redox reaction to proton translocation, and
CC       thus conserves the redox energy in a proton gradient.
CC       {ECO:0000255|HAMAP-Rule:MF_01357}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a plastoquinone + NADH + (n+1) H(+)(in) = a plastoquinol +
CC         NAD(+) + n H(+)(out); Xref=Rhea:RHEA:42608, Rhea:RHEA-COMP:9561,
CC         Rhea:RHEA-COMP:9562, ChEBI:CHEBI:15378, ChEBI:CHEBI:17757,
CC         ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:62192;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01357};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a plastoquinone + NADPH + (n+1) H(+)(in) = a plastoquinol +
CC         NADP(+) + n H(+)(out); Xref=Rhea:RHEA:42612, Rhea:RHEA-COMP:9561,
CC         Rhea:RHEA-COMP:9562, ChEBI:CHEBI:15378, ChEBI:CHEBI:17757,
CC         ChEBI:CHEBI:57783, ChEBI:CHEBI:58349, ChEBI:CHEBI:62192;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01357};
CC   -!- SUBUNIT: NDH is composed of at least 16 different subunits, 5 of which
CC       are encoded in the nucleus. {ECO:0000255|HAMAP-Rule:MF_01357}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_01357}; Peripheral membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_01357}; Stromal side {ECO:0000255|HAMAP-
CC       Rule:MF_01357}.
CC   -!- SIMILARITY: Belongs to the complex I 30 kDa subunit family.
CC       {ECO:0000255|HAMAP-Rule:MF_01357}.
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DR   EMBL; DQ864733; ABI49023.1; -; Genomic_DNA.
DR   RefSeq; YP_740478.1; NC_008334.1.
DR   AlphaFoldDB; Q09MH5; -.
DR   SMR; Q09MH5; -.
DR   GeneID; 4271139; -.
DR   KEGG; cit:4271139; -.
DR   OrthoDB; 781770at71240; -.
DR   Proteomes; UP000027120; Chloroplast.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:InterPro.
DR   GO; GO:0019684; P:photosynthesis, light reaction; IEA:UniProtKB-UniRule.
DR   FunFam; 3.30.460.80:FF:000004; NAD(P)H-quinone oxidoreductase subunit J, chloroplastic; 1.
DR   Gene3D; 3.30.460.80; NADH:ubiquinone oxidoreductase, 30kDa subunit; 1.
DR   HAMAP; MF_01357; NDH1_NuoC; 1.
DR   InterPro; IPR010218; NADH_DH_suC.
DR   InterPro; IPR037232; NADH_quin_OxRdtase_su_C/D-like.
DR   InterPro; IPR001268; NADH_UbQ_OxRdtase_30kDa_su.
DR   InterPro; IPR020396; NADH_UbQ_OxRdtase_CS.
DR   NCBIfam; NF009141; PRK12494.1; 1.
DR   PANTHER; PTHR10884:SF14; NADH DEHYDROGENASE [UBIQUINONE] IRON-SULFUR PROTEIN 3, MITOCHONDRIAL; 1.
DR   PANTHER; PTHR10884; NADH DEHYDROGENASE UBIQUINONE IRON-SULFUR PROTEIN 3; 1.
DR   Pfam; PF00329; Complex1_30kDa; 1.
DR   SUPFAM; SSF143243; Nqo5-like; 1.
DR   PROSITE; PS00542; COMPLEX1_30K; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Membrane; NAD; NADP; Plastid; Plastoquinone; Quinone;
KW   Reference proteome; Thylakoid; Translocase; Transport.
FT   CHAIN           1..158
FT                   /note="NAD(P)H-quinone oxidoreductase subunit J,
FT                   chloroplastic"
FT                   /id="PRO_0000358255"
SQ   SEQUENCE   158 AA;  18531 MW;  3223149E78F8F3BC CRC64;
     MQGRLSAWLV KHGLVHRSLG FDYQGIETLQ IKPEDWHSVA VILYIYGYNY LRSQCAYDVA
     PGGLLASVYH LTRIEYGVDQ PEEVCIKVFA PRSNPKIPSV FWVWKSANFQ ERESYDMLGI
     LYDNHPRLKR ILMPESWIGW PLRKDYIAPN FYEIQDAY
//